CN104534040A - Crankshaft connecting rod mechanism with small load impact - Google Patents
Crankshaft connecting rod mechanism with small load impact Download PDFInfo
- Publication number
- CN104534040A CN104534040A CN201410651652.1A CN201410651652A CN104534040A CN 104534040 A CN104534040 A CN 104534040A CN 201410651652 A CN201410651652 A CN 201410651652A CN 104534040 A CN104534040 A CN 104534040A
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- CN
- China
- Prior art keywords
- pin
- connecting rod
- bent axle
- crankshaft
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to a crankshaft connecting rod mechanism with small load impact, comprising a connecting rod and a crankshaft connection box, wherein the lower end of the connecting rod is connected with a crankshaft by the crankshaft connection box, a balance weight is mounted on the crankshaft, one pair of cam shafts are symmetrically arranged on the two sides of the balance weight respectively, gears are mounted on the cam shafts; a groove is arranged on the lower end of a piston rod, coaxial first pin holes are arranged on the two side walls of the groove respectively, the upper end of the connecting rod has a cylindrical structure, a second pin hole is arranged on the upper end of the connecting rod; the upper end of the connecting rod is arranged in the groove, and a clearance is provided between the outer surface of the upper end of the connecting rod and the inner surface of the groove; and the crankshaft connecting rod mechanism also comprises a connecting pin which sequentially passes through one first pin hole, the second pin hole and the other first pin hole, and the connecting pin is in clearance fit with the first pin holes and the second pin hole. The connecting rod and the piston rod are connected by the connecting pin, so as to avoid the situation that an integral structure is easy to break as much as possible, and thus the whole crankshaft connecting rod mechanism has the advantages of small friction resistance, smooth operation and small load impact.
Description
Technical field
The present invention relates to motor Component, specifically refer to a kind of crankshaft & connecting little by load impacting.
Background technique
Crankshaft & connecting is the important arrangement components in crankcase structure, in existing crankcase crankshaft & connecting, what generally adopt is the structure that counterweight connects gear, the crankcase of this structure easily produces larger surface friction drag in crankcase runs up process, cause crankshaft-link rod to seize up, crankshaft-link rod frequently withstands shocks load greatly, makes crankshaft-link rod serious wear, cause the excessive temperature rise of crankshaft-link rod, occur that connecting rod breaks the phenomenon such as bar so that excessively heated axle.In addition, in bent axle working procedure, the lubrication connecting the piston rod pin of connecting rod and piston rod has material impact for the performance of overall engine, but in existing structure, the lubricating condition of piston rod pin is always poor, is difficult to satisfy the demand.In addition, because complex structure, pressurized air demand are comparatively large, connecting rod and piston rod one, and easily cause the problems such as the fracture of the not enough generation of structural strength.
Summary of the invention
For the problems referred to above that prior art exists, the object of this invention is to provide one and effectively can reduce crankshaft-link rod wearing and tearing, the crankshaft & connecting of piston rod pin high lubricating effect simultaneously.
For achieving the above object, the present invention adopts following technological scheme: a kind of crankshaft & connecting little by load impacting, comprise connecting rod, it is characterized in that: also comprise bent axle connecting box, the lower end of described connecting rod is connected with bent axle by bent axle connecting box, described bent axle is provided with counterweight, is provided with pair of cams axle symmetrically respectively in the left and right sides of counterweight, described camshaft is provided with gear; The upper end of described connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body; The lower end of described piston rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the upper end of described connecting rod is cylindrical structure, and the upper end of connecting rod has the second pin-and-hole; The upper end of connecting rod is arranged in described groove, and the internal surface of the outer surface of small end and groove has gap; Also comprise connecting pin, this connecting pin successively through first pin-and-hole, the second pin-and-hole and another first pin-and-hole, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung.
As optimization, the two ends of described connecting pin are provided with snap ring.
As optimization, described bent axle connecting box comprises the lower upper cover of bent axle connection and is connected lower cover with bent axle, and the lower upper cover of described bent axle connection is connected lower cover with bent axle and removably connects.
Relative to prior art, tool of the present invention has the following advantages:
1, piston rod in prior art and connecting rod are integrally divided into piston rod and connecting rod two parts, and linked together by pivot pin, connecting rod opposing pistons bar can rotate, and to solve in prior art because complex structure, pressurized air demand are comparatively large, the problem such as the easy-rupturing caused by structural strength deficiency that connecting rod and piston rod integrally cause.
2, have employed on bent axle and counterweight is installed, in the both sides of counterweight, camshaft is set respectively, camshaft installs gear, piston rod is connected in the upper end of connecting rod, piston rod is installed the mode of structure that spark plug drives push rod, make that crankshaft-link rod is on-stream does not produce temperature rise as much as possible, whole crankshaft & connecting is had, and surface friction drag is little, unobstructed, the wearing and tearing of operating are less with by the little advantage of load impacting.
Accompanying drawing explanation
Fig. 1 is the plan view by the little crankshaft & connecting of load impacting.
Fig. 2 is the enlarged view at Figure 1A place
Fig. 3 is the side-looking assembly structure schematic diagram of Fig. 1 crankshaft & connecting.
Description of reference numerals: connecting rod 10, groove 11, connecting pin 12, bent axle 20, counterweight 21, camshaft 22, gear 23, bent axle connects upper cover 31, and bent axle connects lower cover 32, piston rod 40, push rod body 41, push rod 42, spark plug 50.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " top ", " end " " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.
See Fig. 1 to Fig. 3, a kind of crankshaft & connecting little by load impacting, comprises connecting rod and bent axle connecting box, and bent axle connecting box comprises bent axle connection upper cover and is connected lower cover with bent axle, and bent axle connection upper cover is connected lower cover with bent axle and removably connects; Bent axle connection upper cover is connected lower cover and is half nahlock with bent axle, the middle part of its half nahlock has half slot.Bent axle connection upper cover is connected half nahlock of lower cover both sides with bent axle have vertical coaxial circular aperture, are respectively the first circular hole and the second circular hole.The bent axle connection upper cover of half nahlock is identical with the radius that bent axle connects lower cover, and the plane process polishing processing that two and half nahlocks are relative.Bent axle connect upper cover be connected with bent axle lower cover pass through through the first circular hole and the second circular hole fixing bolt and be connected to the set screw nut at fixing bolt top, bent axle is connected upper cover and is connected lower cover with bent axle and links together.
Bent axle connects upper cover and is fixedly connected with the lower end of connecting rod, connecting rod is connected upper cover with bent axle can be processed as entirety, also can have and connect in the following way: connecting rod lower end has tapped hole, bent axle covers on connecting and is fixed with connection boss, the periphery of this connection boss is processed with screw thread, connect boss to stretch in the tapped hole of connecting rod lower end, and the screw thread on the tapped hole of connecting rod lower end matches with the screw thread be connected on boss, lower end bent axle being connected upper cover and connecting rod links together.
Bent axle is connected under bent axle connects and covers, and bent axle is provided with counterweight, is provided with pair of cams axle symmetrically respectively, camshaft is provided with gear in the left and right sides of counterweight; The upper end of connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body.The lower end of described piston rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the upper end of connecting rod is cylindrical structure, and the upper end of connecting rod has the second pin-and-hole; The upper end of connecting rod is arranged in described groove, and the internal surface of the outer surface of small end and groove has gap; Also comprise connecting pin, this connecting pin successively through first pin-and-hole, the second pin-and-hole and another first pin-and-hole, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung, make connecting rod can groove interior be that axle rotates with connecting pin.
As optimization, the two ends of connecting pin are provided with snap ring, prevent connecting pin from deviating from from the second pin-and-hole and a pair first pin-and-holes.Load after in the second pin-and-hole and a pair first pin-and-holes at link pin and reinstall snap ring.The preferred forging clasp of snap ring, also can according to selecting bending clasp, back-action clasp, combined clasp, half and half clasp.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in right of the present invention will in book.
Claims (3)
1. one kind is subject to the crankshaft & connecting that load impacting is little, comprise connecting rod, it is characterized in that: also comprise bent axle connecting box, the lower end of described connecting rod is connected with bent axle by bent axle connecting box, described bent axle is provided with counterweight, be provided with pair of cams axle symmetrically respectively in the left and right sides of counterweight, described camshaft is provided with gear;
The upper end of described connecting rod is connected with piston rod, and the top of piston rod is connected with spark plug, and in the both sides of piston rod, symmetrical is provided with push rod body, is provided with push rod in push rod body, and push rod can be movable back and forth in push rod body;
The lower end of described piston rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the upper end of described connecting rod is cylindrical structure, and the upper end of connecting rod has the second pin-and-hole; The upper end of connecting rod is arranged in described groove, and the internal surface of the outer surface of small end and groove has gap;
Also comprise connecting pin, this connecting pin successively through first pin-and-hole, the second pin-and-hole and another first pin-and-hole, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung.
2. the crankshaft & connecting little by load impacting as claimed in claim 1, is characterized in that: the two ends of described connecting pin are provided with snap ring.
3. the crankshaft & connecting little by load impacting as claimed in claim 1 or 2, is characterized in that: described bent axle connecting box comprises the lower upper cover of bent axle connection and is connected lower cover with bent axle, and the lower upper cover of described bent axle connection is connected lower cover with bent axle and removably connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410651652.1A CN104534040A (en) | 2014-11-17 | 2014-11-17 | Crankshaft connecting rod mechanism with small load impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410651652.1A CN104534040A (en) | 2014-11-17 | 2014-11-17 | Crankshaft connecting rod mechanism with small load impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534040A true CN104534040A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410651652.1A Pending CN104534040A (en) | 2014-11-17 | 2014-11-17 | Crankshaft connecting rod mechanism with small load impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626803A (en) * | 2016-03-23 | 2016-06-01 | 中山市美捷时包装制品有限公司 | Cam driving mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076641A (en) * | 2003-08-29 | 2005-03-24 | Nissan Motor Co Ltd | Variable compression ratio mechanism of internal- combustion engine |
| CN1924318A (en) * | 2005-08-29 | 2007-03-07 | 本田技研工业株式会社 | Stroke-variable engine |
| KR20130041413A (en) * | 2011-10-17 | 2013-04-25 | 장경태 | Single cylinder motor cycle engine with eccentric cam type crank shaft |
| CN103216517A (en) * | 2012-09-26 | 2013-07-24 | 祥天控股（集团）有限公司 | Linkage mechanism of engine |
| CN203257537U (en) * | 2013-05-03 | 2013-10-30 | 徐州凯龙矿山科技开发有限公司 | Crank case crankshaft connecting rod system |
| CN204300267U (en) * | 2014-11-17 | 2015-04-29 | 重庆翼虎动力机械有限公司 | By the crankshaft & connecting that load impacting is little |
-
2014
- 2014-11-17 CN CN201410651652.1A patent/CN104534040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076641A (en) * | 2003-08-29 | 2005-03-24 | Nissan Motor Co Ltd | Variable compression ratio mechanism of internal- combustion engine |
| CN1924318A (en) * | 2005-08-29 | 2007-03-07 | 本田技研工业株式会社 | Stroke-variable engine |
| KR20130041413A (en) * | 2011-10-17 | 2013-04-25 | 장경태 | Single cylinder motor cycle engine with eccentric cam type crank shaft |
| CN103216517A (en) * | 2012-09-26 | 2013-07-24 | 祥天控股（集团）有限公司 | Linkage mechanism of engine |
| CN203257537U (en) * | 2013-05-03 | 2013-10-30 | 徐州凯龙矿山科技开发有限公司 | Crank case crankshaft connecting rod system |
| CN204300267U (en) * | 2014-11-17 | 2015-04-29 | 重庆翼虎动力机械有限公司 | By the crankshaft & connecting that load impacting is little |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626803A (en) * | 2016-03-23 | 2016-06-01 | 中山市美捷时包装制品有限公司 | Cam driving mechanism |
| CN105626803B (en) * | 2016-03-23 | 2018-01-19 | 中山市美捷时包装制品有限公司 | A kind of cam drive mechanism |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
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| WD01 | Invention patent application deemed withdrawn after publication |